3 years ago

Which formula represents a polar molecule? (1) H2 (3) CO2 (2) H2O (4) CCl4

Chemistry

1 answer:

gulaghasi [49]3 years ago

4 0

Answer:

Explanation:

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25.45 Liters

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aivan3 [116]

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2 years ago

Read 2 more answers

Consider the reaction below.

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Answer:

<u>First choice: 0.042</u>

Explanation:

Given decomposition reaction:

1PCl₅ (g) ⇄ 1PCl₃ + 1Cl₂(g)

Equilibrium constant:

$K_{eq}=\frac{[PCl_3]^1[Cl_2]^1}{[PCl_5]^1}$

Stoichiometric coefficients and powers equal to 1 are not usually shown as they are understood, but I included them in order to shwow you how they intervene in the equilibrium expressions: each concentration is raised to a power equal to the respective stoichiometric coefficient in the equilibrium equation.

So, your calculations are:

$K_{eq}=\frac{(0.020M)(0.020M)}{0.0095M}=0.042M$

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3 years ago